CC BY-NC-ND 4.0 · Asian J Neurosurg 2020; 15(04): 931-936
DOI: 10.4103/ajns.AJNS_308_20
Original Article

Anterior communicating artery aneurysm clipping: Experience at a tertiary care center with respect to intraoperative rupture

Ramit Singh
Department of Neurosurgery, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh
,
Ravi Prasad
Department of Neurosurgery, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh
,
Rahul Singh
Department of Neurosurgery, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh
› Author Affiliations

Context: The incidence of anterior communicating artery (Acomm) aneurysm is high and it is associated with high risk of rupture. Aims: The aim is to evaluate various factors (size, wall morphology, and fundus direction) associated with intraoperative rupture (IOR) of Acomm aneurysm. Settings and Design: Retrospective cohort study. Subjects and Methods: Our study includes 25 operated patients diagnosed to have ruptured Acomm aneurysm in the Department of Neurosurgery of Institute of Medical Sciences, Banaras Hindu University, Varanasi, India, between January 2016 and July 2020. Our study included all patients with ruptured Acomm aneurysm who received clipping as method of treatment. Statistical Analysis: Chi-square test was used for analysis. Values with P < 0.05 were considered statistically significant. Statistical tests were done using GraphPad Prism version 8.3.0 software. Results: None of the patients with <4 mm, 6 patients of >4–10 mm, and 2 patients of >10 mm aneurysm size experienced IOR. IOR was seen in 2 patients with smooth wall and 6 in irregular aneurysm wall. All patients with posterior, 1 patient with inferior, 2 patients with anterior, and 1 patient with superior directing aneurysm experienced IOR. Patients with bilaterally clipped A1 experienced no IOR, while in unilaterally clipped aneurysm only 2 patients experienced IOR. Glasgow outcome score was better in patients with no IOR. Conclusion: The factors associated with high risk of IOR are: Aneurysm size >4 mm, multilobulated or irregular aneurysm wall, posteriorly and inferiorly directed aneurysms. Patients in whom Both A1 was temporarily clipped, experienced no IOR and better outcome.

Financial support and sponsorship

Nil.




Publication History

Received: 20 June 2020

Accepted: 26 August 2020

Article published online:
16 August 2022

© 2020. Asian Congress of Neurological Surgeons. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

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  • References

  • 1 Wiebers DO, Whisnant JP, Huston J 3rd, Meissner I, Brown RD Jr., Piepgras DG, et al. Unruptured intracranial aneurysms: Natural history, clinical outcome, and risks of surgical and endovascular treatment. Lancet 2003;362:103-10.
  • 2 Molyneux A, Kerr R, Stratton I, Sandercock P, Clarke M, Shrimpton J, et al. International Subarachnoid Aneurysm Trial (ISAT) of neurosurgical clipping versus endovascular coiling in 2143 patients with ruptured intracranial aneurysms: A randomised trial. Lancet 2002;360:1267-74.
  • 3 Greving JP, Wermer MJ, Brown RD Jr., Morita A, Juvela S, Yonekura M, et al. Development of the PHASES score for prediction of risk of rupture of intracranial aneurysms: A pooled analysis of six prospective cohort studies. Lancet Neurology 2014;13: 59-66.
  • 4 Bijlenga P, Ebeling C, Jaegersberg M, Summers P, Rogers A, Waterworth A, et al. Risk of rupture of small anterior communicating artery aneurysms is similar to posterior circulation aneurysms. Stroke 2013;44:3018-26.
  • 5 Hoh BL, Sistrom CL, Firment CS, Fautheree GL, Velat GJ, Whiting JH, et al. Bottleneck factor and height-width ratio: Association with ruptured aneurysms in patients with multiple cerebral aneurysms. Neurosurgery 2007;61:716-22.
  • 6 International Study of Unruptured Intracranial Aneurysms Investigators. Unruptured intracranial aneurysms–risk of rupture and risks of surgical intervention. N Engl J Med 1998;339:1725-33.
  • 7 Kashiwazaki D, Kuroda S, Sapporo SAH Study Group. Size ratio can highly predict rupture risk in intracranial small (<5 mm) aneurysms. Stroke 2013;44:2169-73.
  • 8 UCAS Japan Investigators, Morita A, Kirino T, Hashi K, Aoki N, Fukuhara S, et al. The natural course of unruptured cerebral aneurysms in a Japanese cohort. N Engl J Med 2012;366:2474-82.
  • 9 Castro MA, Putman CM, Cebral JR. Computational fluid dynamics modeling of intracranial aneurysms: Effects of parent artery segmentation on intra-aneurysmal hemodynamics. AJNR Am J Neuroradiol 2006;27:1703-9.
  • 10 Castro MA, Putman CM, Sheridan MJ, Cebral JR. Hemodynamic patterns of anterior communicating artery aneurysms: A possible association with rupture. AJNR Am J Neuroradiol 2009;30:297-302.
  • 11 Cebral JR, Sheridan M, Putman CM. Hemodynamics and bleb formation in intracranial aneurysms. AJNR Am J Neuroradiol 2010;31:304-10.
  • 12 Chien A, Sayre J, Viñuela F. Comparative morphological analysis of the geometry of ruptured and unruptured aneurysms. Neurosurgery 2011;69:349-56.
  • 13 Clarke M. Systematic review of reviews of risk factors for intracranial aneurysms. Neuroradiology 2008;50:653-64.
  • 14 Dhar S, Tremmel M, Mocco J, Kim M, Yamamoto J, Siddiqui AH, et al. Morphology parameters for intracranial aneurysm rupture risk assessment. Neurosurgery 2008;63:185-96.
  • 15 Karmonik C, Yen C, Grossman RG, Klucznik R, Benndorf G. Intra-aneurysmal flow patterns and wall shear stresses calculated with computational flow dynamics in an anterior communicating artery aneurysm depend on knowledge of patient-specific inflow rates. Acta Neurochir (Wien) 2009;151:479-85.
  • 16 Ma D, Tremmel M, Paluch RA, Levy EI, Meng H, Mocco J. Size ratio for clinical assessment of intracranial aneurysm rupture risk. Neurol Res 2010;32:482-6.
  • 17 Matsukawa H, Fujii M, Akaike G, Uemura A, Takahashi O, Niimi Y, et al. Morphological and clinical risk factors for posterior communicating artery aneurysm rupture. J Neurosurg 2014;120:104-10.
  • 18 Ohashi Y, Horikoshi T, Sugita M, Yagishita T, Nukui H. Size of cerebral aneurysms and related factors in patients with subarachnoid hemorrhage. Surg Neurol 2004;61:239-45.
  • 19 Rahman M, Smietana J, Hauck E, Hoh B, Hopkins N, Siddiqui A, et al. Size ratio correlates with intracranial aneurysm rupture status: A prospective study. Stroke 2010;41:916-20.
  • 20 Szikora I, Paal G, Ugron A, Nasztanovics F, Marosfoi M, Berentei Z, et al. Impact of aneurysmal geometry on intraaneurysmal flow: A computerized flow simulation study. Neuroradiology 2008;50:411-21.
  • 21 Tremmel M, Dhar S, Levy EI, Mocco J, Meng H. Influence of intracranial aneurysm-to-parent vessel size ratio on hemodynamics and implication for rupture: Results from a virtual experimental study. Neurosurgery 2009;64:622-30.
  • 22 Wermer MJ, van der Schaaf IC, Algra A, Rinkel GJ. Risk of rupture of unruptured intracranial aneurysms in relation to patient and aneurysm characteristics: An updated meta-analysis. Stroke 2007;38:1404-10.
  • 23 Pang P, Chan K, Zhu X, Datta N, Rehman S, Aung T, et al. Use of elective temporary clips in preventing intraoperative cerebral aneurysm rupture. Ann Coll Surg Hong Kong 2004;8:44-8.
  • 24 Chee LC, Siregar JA, Ghani ARI, Idris Z, Rahman Mohd NAA. The Factors Associated with Outcomes in Surgically Managed Ruptured Cerebral Aneurysm. Malays J Med Sci 2018;25:32-41.
  • 25 Kim MC, Hwang SK. The Rupture Risk of Aneurysm in the Anterior Communicating Artery: A Single Center Study. Journal of Cerebrovascular and Endovascular Neurosurgery 2017;19:36-43.
  • 26 Matsukawa H, Uemura A, Fujii M, Kamo M, Takahashi O, Sumiyoshi S. Morphological and clinical risk factors for the rupture of anterior communicating artery aneurysms. J Neurosurg 2013;118:978-83.
  • 27 Pang PK, Chan KY, Zhu XL, Datta NN, Rehman SU, Aung TH, et al. Ann Coll Surg H K 2004;8:44-8.